A huge fight breaks out after Mike tells Jionni he hooked up with Snooki; Deena faces a difficult truth about Joey; some of the roommates go camping while Pauly and Vinny pull off a big prank.

J-Woww confronts Pauly’s stalker; Snooki’s boyfriend denies her affections, prompting her to pursue Vinny; the roommates go fishing despite their fears of a shark attack

Snooki and Deena clash with one of the roommates; Roger visits and gets upset with J-Woww for wearing a revealing outfit.

Mike plots to bring down one of his roommates, and for once, it’s someone other than Snooki. Meanwhile, J-Woww becomes worried when Roger won’t return her calls.

The roommates celebrate Vinny’s return; Mike goes out of his way to be nice but gets on the guys’ nerves; Snooki deals with an uncomfortable condition

Mike returns and learns about Danny’s threat to find new tenants; the girls hire X-rated entertainment for Pauly and Mike’s birthday party; the gang heads to Staten Island in hopes of persuading Vinny to come back to the shore.

The roommates adjust to life at the shore without Vinny; Mike addresses his own internal demons; Pauly celebrates his birthday

Snooki clashes with Jionni; Vinny mulls his options.

After an eventful trip overseas, the cast returns to Seaside Heights, N.J., in the Season 5 premiere.